UPDATE: Heat advisory issued for Southwest Washington from Sunday to Tuesday

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On Friday at 10:36 a.m. an updated heat advisory was issued by the NWS Portland OR valid from Sunday 11 a.m. until Tuesday 11 p.m. The advisory is for Willapa and Wahkiakum Lowlands, Willapa Hills, Cowlitz County Lowlands, North Clark County Lowlands, South Washington Cascade Foothills and Central Columbia River Gorge - SR 14.

"Temperatures of 90 to 96 degrees F expected," says the NWS. "Peak heating days will be Sunday and Monday with a slight cool down on Tuesday. Overnight temperatures will remain elevated Sunday night into Monday morning, and Monday night into Tuesday morning. Night time temperatures ranging from 60 to 65 degrees F will lead to limited overnight relief."

"Hot temperatures may cause heat illnesses," comments the NWS.

This advisory is in effect until Tuesday at 11 p.m.

Ways to stay safe in the heat according to the NWS

• Stay hydrated: Make sure to drink plenty of fluids.
• Seek cool shelter: Opt for an air-conditioned room to stay comfortable.
• Check on others: Stay out of the sun, and make sure to check up on relatives and neighbors.
• Child and pet safety: Never leave young children and pets unattended in vehicles, especially when car interiors can reach lethal temperatures within minutes.
• Exercise caution outdoors: If you work or spend time outside, take additional safety measures.
• Find the right time: Consider rescheduling strenuous activities to early morning or evening if possible.
• Know the red flags: Understand the signs and symptoms of heat exhaustion and heat stroke.
• Stay cool with clothing: Wear lightweight and loose-fitting clothing.

To minimize risks during outdoor work, the Occupational Safety and Health Administration (OSHA) advises incorporating frequent rest breaks in shaded or air-conditioned areas. If someone experiences heat-related symptoms, promptly relocate them to a cool and shaded spot. In case of an emergency, dial 911.

Source: The National Weather Service

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This story was originally published June 12, 2026 at 10:39 AM.